A tunnel blind pipe reamer

Abstract

This invention belongs to the field of blind pipe reaming technology, and specifically relates to a tunnel blind pipe reaming machine, including a movable frame. A controller is fixedly connected to the upper side wall of the movable frame, and support plates are fixedly connected to the left and right outer walls of the movable frame. Multiple rollers are connected to the lower side wall of the support plates. It also includes an adjustment component, disposed on the side wall of the movable frame, facilitating manual coarse adjustment of the drill bit's placement angle. During operation, this tunnel blind pipe reaming machine automatically and synchronously delivers cleaning fluid into the blind pipe, which can promptly soften, flush, and remove accumulated silt and impurities, effectively reducing the drilling resistance and wear of the reaming drill bit, preventing silt clumping that could cause stuck drill bits or blocked rotation, while ensuring a regular hole diameter and unobstructed passage, improving the accuracy and efficiency of reaming construction, and creating favorable conditions for subsequent drainage and construction.

Description

Technical Field

[0001] This invention belongs to the field of blind pipe reaming technology, and in particular relates to a tunnel blind pipe reaming machine. Background Technology

[0002] Blind pipes are the core components of tunnel drainage systems. They play a crucial role in guiding and removing groundwater behind the tunnel lining, effectively preventing water seepage and accumulation in the tunnel lining structure, and ensuring the overall structural stability and long-term service safety of the tunnel. During the installation, operation, maintenance, and repair of blind pipes, it is sometimes necessary to enlarge the holes at the original installation locations to accommodate the new blind pipe size or to facilitate better construction operations.

[0003] Silt accumulation inside tunnel blind pipes is a very common problem during tunnel operation and maintenance. Its occurrence is caused by multiple construction and environmental factors: On the one hand, fissure water in the surrounding rock and surface seepage water carry a large amount of impurities such as mud, dust, and gravel into the blind pipe during the flow process. As the water flow rate slows down, the impurities gradually deposit and form silt. On the other hand, residual concrete slurry and dust from tunnel construction, as well as debris that seeps in due to inadequate sealing of blind pipe interfaces, will also accumulate and solidify inside the pipe, mixing with mud and sand to aggravate siltation. In addition, mineral crystals and microbial plaques adhering to the inner wall of the blind pipe after long-term service will also adsorb impurities and accelerate the silt agglomeration. Silt accumulation inside the blind pipe will directly have multiple adverse effects on borehole reaming operations. The viscous texture of the silt and its high hardness after agglomeration will not only significantly increase the drilling resistance of the reaming drill bit, aggravate drill bit wear, and reduce equipment operating efficiency, but also cause drill bit positioning deviation during borehole reaming, leading to problems such as uneven hole diameter and duct misalignment.

[0004] To address these issues, a tunnel blind pipe reamer is proposed. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a tunnel blind pipe reaming machine.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tunnel blind pipe reaming machine, comprising a movable frame, a controller fixedly connected to the upper side wall of the movable frame, support plates fixedly connected to the left and right outer walls of the movable frame, and multiple rollers connected to the lower side wall of the support plates, and further comprising: An adjustment component is provided on the side wall of the movable frame to facilitate manual coarse adjustment of the placement angle of the drill bit mechanism; A delivery assembly, located on the left side wall of the movable frame, is used to deliver flushing fluid into the flushing head mechanism; A recovery assembly, located on the right side wall of the mobile frame, is used to recover the sludge flushed down from the blind pipe. An auxiliary component, disposed on the surface of the flushing head mechanism, enables fine adjustment of the placement angle of the drill bit mechanism.

[0007] Preferably, the adjustment assembly includes a hydraulic cylinder fixedly connected to the upper side wall of the movable frame. The moving end of the hydraulic cylinder passes through the movable frame and is rotatably connected to an adjustment frame. Adjustment rods are rotatably connected to both sides of the adjustment frame. The two adjustment rods are fixedly connected to the same mounting sleeve at opposite ends. A main electric push rod is fixedly connected inside the mounting sleeve. A vertical electric push rod is connected to the rod wall of the moving end of the hydraulic cylinder through a placement frame. A friction ring is connected to the moving end of the vertical electric push rod. A limit ring is connected to the upper side wall of the adjustment frame. A transverse electric push rod is connected to the outer walls of the left and right sides of the adjustment frame through a bending plate. A roughening plate is connected to the moving end of the transverse electric push rod. A roughening seat is fixedly connected to the end of the adjustment rod extending out of the adjustment frame.

[0008] Preferably, the drill bit mechanism includes a movable plate fixedly connected to the moving end of the main electric push rod. A fixed tube is fixedly connected to the side wall of the movable plate away from the main electric push rod. A rotating sleeve is rotatably sleeved on the front end of the fixed tube via a bearing. A connecting frame is fixedly connected to the front side wall of the movable plate. A cleaning motor is fixedly connected to the side wall of the connecting frame. The output end of the cleaning motor is connected to the rotating sleeve via a gear ring transmission mechanism. A mounting frame is fixedly connected to the outer wall of the rotating sleeve. A small electric push rod is fixedly connected to the lower side wall of the mounting frame. An electric drill bit is connected to the moving end of the small electric push rod.

[0009] Preferably, the conveying assembly includes a rinsing tank fixedly connected to the left side wall of the movable frame. A conveying pump is connected to the side wall of the rinsing tank. The inlet end of the conveying pump is connected to the rinsing tank. A conveying pipe is connected to the outlet end of the conveying pump. The end of the conveying pipe away from the outlet end of the conveying pump passes through the movable plate and the fixed pipe and is located inside the rotating sleeve. A first diverting ring cylinder is fixedly connected to the inner wall of the rotating sleeve. A first ring plate is rotatably connected to the inner wall of the first diverting ring cylinder through a sealed bearing. The end of the conveying pipe inside the rotating sleeve is connected to the first ring plate. A square tube is movably inserted into the front end of the rotating sleeve. A support ring is fixedly connected to the inner wall of the rotating sleeve. The same spring connects the support ring and the square tube. A first bent pipe is fixedly connected to the side wall of the first diverting ring cylinder. The end of the first bent pipe away from the first diverting ring cylinder is connected to a rinsing pipe through a telescopic pipe. The front end of the rinsing pipe is connected to the rinsing head mechanism.

[0010] Preferably, the flushing head mechanism includes a hollow cylinder fixedly connected to the front end of the square tube. The front side wall of the hollow cylinder has multiple water spray holes and multiple cleaning cones fixedly connected to it. A water distribution box is provided inside the hollow cylinder. The water distribution box and the hollow cylinder are fixedly connected by the same sealing ring. A first water distribution pipe and a second water distribution pipe are respectively inserted into the front and rear sides of the water distribution box. A control valve is provided in both the first water distribution pipe and the second water distribution pipe. A pressure sensor is provided in the water distribution box.

[0011] Preferably, the recycling assembly includes a recycling box fixedly connected to the right side wall of the movable frame. A sludge pump is connected to the side wall of the recycling box. The discharge end of the sludge pump is connected to the recycling box. A recycling pipe is connected to the inlet end of the sludge pump. The end of the recycling pipe away from the sludge pump passes through the movable plate and the fixed pipe and is located inside the rotating sleeve. A second diversion ring cylinder is fixedly connected to the inner wall of the rotating sleeve. The second diversion ring cylinder is located behind the first diversion ring cylinder. A second ring plate is rotatably connected to the inner wall of the second diversion ring cylinder through a sealed bearing. The front end of the recycling pipe is fixedly connected to the second ring plate. A second bend pipe is fixedly connected to the side wall of the second diversion ring cylinder. The end of the second bend pipe away from the second diversion ring cylinder passes through the first diversion ring cylinder and is connected to a suction pipe through a telescopic pipe. A converging pipe is fixedly connected to the inner wall of the square tube. The front end of the suction pipe is connected to the converging pipe. Multiple short pipes are connected to the side wall of the converging pipe. The ends of the short pipes away from the converging pipe extend out of the square tube.

[0012] Preferably, the auxiliary component includes a plurality of first auxiliary cylinders inserted into the outer wall of the hollow cylinder, and a second auxiliary cylinder connected to the inner wall of the first auxiliary cylinder by a spring. Both the first and second auxiliary cylinders are through structures. A pressing column is connected to the inner wall of the second auxiliary cylinder by a spring. A pressing block is fixedly connected to one end of the pressing column extending out of the second auxiliary cylinder. A piston ring is connected to one end of the second auxiliary cylinder located at the first auxiliary cylinder. A piston plate is fixedly connected to one end of the pressing column located at the second auxiliary cylinder.

[0013] Preferably, a positioning electric push rod is fixedly connected to the upper side wall of the support plate, and the moving end of the positioning electric push rod passes through the support plate and is fixedly connected to a nail plate.

[0014] Compared with existing technologies, the advantages of a tunnel blind pipe reamer are: 1. Through the set conveying components and flushing head mechanism, the tunnel blind pipe reamer automatically delivers cleaning fluid into the blind pipe during operation, which can soften, flush and remove the silt and impurities accumulated in the pipe in a timely manner, effectively reducing the drilling resistance and wear of the reamer drill bit, avoiding silt clumping that causes drill jamming, spin jamming and other failures, while ensuring regular hole diameter and unobstructed hole, improving the accuracy and efficiency of reaming construction, and creating good conditions for subsequent drainage and construction.

[0015] 2. The set-up recycling components can automatically recycle the sludge after flushing, and can promptly collect and discharge the sludge and sand impurities carried by the cleaning fluid, avoiding secondary deposition of sludge in the blind pipe or scattering and accumulating in the tunnel construction area. This not only keeps the working environment clean and reduces the amount of subsequent manual cleaning, but also prevents sludge from clogging the pipeline and equipment slag discharge channel, ensuring the continuous and stable progress of borehole enlargement and flushing operations. At the same time, it reduces the pollution of sludge to the tunnel structure and the surrounding environment, and improves the environmental friendliness of construction and the overall operation efficiency.

[0016] 3. With the help of adjustable and auxiliary components, the tunnel blind pipe reamer can automatically align with the blind pipe before reaming, so that the drill bit and the blind pipe are coaxial and straight, ensuring that the reamed hole diameter is uniform and the channel is straight. At the same time, it significantly reduces the risk of stuck drill and drill blockage, improves the reaming accuracy and construction quality, reduces abnormal wear of the drill bit, extends the service life of the equipment, and ensures smooth drainage and integrity of the blind pipe structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a tunnel blind pipe reamer provided by the present invention; Figure 2 This is a schematic diagram of the drill bit mechanism in a tunnel blind pipe reamer provided by the present invention; Figure 3 This is a schematic diagram of the surface structure of the adjusting frame in a tunnel blind pipe reamer provided by the present invention; Figure 4 This is a schematic diagram of the internal structure of the rotating sleeve in a tunnel blind pipe reamer provided by the present invention; Figure 5 yes Figure 4 An enlarged schematic diagram of part A in the middle; Figure 6 This is a schematic diagram of the flushing head mechanism in a tunnel blind pipe reamer provided by the present invention; Figure 7 This is a schematic diagram of the structure of an auxiliary component in a tunnel blind pipe reamer provided by the present invention.

[0018] In the diagram: 1. Moving frame, 2. Controller, 3. Support plate, 4. Adjusting assembly, 401. Hydraulic cylinder, 402. Adjusting frame, 5. Adjusting rod, 6. Mounting sleeve, 7. Main electric push rod, 8. Drill bit mechanism, 81. Moving plate, 82. Fixed pipe, 9. Rotating sleeve, 10. Connecting frame, 11. Cleaning motor, 12. Mounting frame, 13. Small electric push rod, 14. Electric drill bit, 15. Conveying assembly, 151. Flushing box, 152. Conveying pump, 16. Conveying pipe, 17. First diversion ring cylinder, 18. First ring plate, 19. Square tube, 20. Support ring, 21. First bend pipe, 22. Flushing pipe, 23. Flushing head mechanism, 231. Hollow cylinder, 232. Water spray hole, 24. Cleaning cone, 25. Water distribution box, 2 6 Sealing ring, 27 First water distribution pipe, 28 Second water distribution pipe, 29 Control valve, 30 Pressure sensor, 31 Recovery assembly, 311 Recovery box, 312 Sludge pump, 32 Recovery pipe, 33 Second diversion ring cylinder, 34 Second ring plate, 35 Second bend, 36 Suction pipe, 37 Converging pipe, 38 Short pipe, 39 Auxiliary assembly, 391 First auxiliary cylinder, 392 Second auxiliary cylinder, 40 Extrusion column, 41 Extrusion block, 42 ​​Piston ring, 43 Piston plate, 44 Positioning electric push rod, 45 Nail plate, 46 Placement rack, 47 Vertical electric push rod, 48 Friction ring, 49 Limiting ring, 50 Bend plate, 51 Horizontal electric push rod, 52 Rough plate, 53 Rough seat. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] like Figures 1-7 As shown, a tunnel blind pipe reaming machine includes a movable frame 1, a controller 2 fixedly connected to the upper side wall of the movable frame 1, support plates 3 fixedly connected to the left and right outer walls of the movable frame 1, multiple rollers connected to the lower side wall of the support plates 3, and a positioning electric push rod 44 fixedly connected to the upper side wall of the support plates 3. The moving end of the positioning electric push rod 44 passes through the support plate 3 and is fixedly connected to a nail plate 45. The machine also includes: Adjustment component 4 is disposed on the side wall of the movable frame 1. Adjustment component 4 includes a hydraulic cylinder 401 fixedly connected to the upper side wall of the movable frame 1. The moving end of the hydraulic cylinder 401 passes through the movable frame 1 and is rotatably connected to an adjustment frame 402. Adjustment rods 5 are rotatably connected to both sides of the adjustment frame 402. The two adjustment rods 5 are fixedly connected to the same mounting sleeve 6 at opposite ends. A main electric push rod 7 is fixedly connected inside the mounting sleeve 6. The rod wall of the moving end of the hydraulic cylinder 401 is connected to a vertical electric push rod 47 through a placement frame 46. The moving end of the vertical electric push rod 47 is connected to a friction ring 48. A limit ring 49 is connected to the upper side wall of the adjustment frame 402. The outer walls of the left and right sides of the adjustment frame 402 are connected to a transverse electric push rod 51 through a bending plate 50. The moving end of the transverse electric push rod 51 is connected to a rough plate 5. 2. One end of the adjusting rod 5 extending out of the adjusting frame 402 is fixedly connected to a roughing seat 53, which facilitates manual roughing adjustment of the placement angle of the drill bit mechanism 8. The drill bit mechanism 8 includes a moving plate 81 fixedly connected to the moving end of the main electric push rod 7. A fixed tube 82 is fixedly connected to the side wall of the moving plate 81 away from the main electric push rod 7. A rotating sleeve 9 is rotatably sleeved at the front end of the fixed tube 82 through a bearing. A connecting frame 10 is fixedly connected to the front side wall of the moving plate 81. A cleaning motor 11 is fixedly connected to the side wall of the connecting frame 10. The output end of the cleaning motor 11 is connected to the rotating sleeve 9 through a gear ring transmission mechanism. A mounting frame 12 is fixedly connected to the outer wall of the rotating sleeve 9. A small electric push rod 13 is fixedly connected to the lower side wall of the mounting frame 12. An electric drill bit 14 is connected to the moving end of the small electric push rod 13. A conveying assembly 15 is disposed on the left side wall of the movable frame 1. The conveying assembly 15 includes a rinsing tank 151 fixedly connected to the left side wall of the movable frame 1. A conveying pump 152 is connected to the side wall of the rinsing tank 151. The inlet end of the conveying pump 152 is connected to the rinsing tank 151, and the outlet end of the conveying pump 152 is connected to a conveying pipe 16. One end of the conveying pipe 16 away from the outlet end of the conveying pump 152 passes through the movable plate 81 and the fixed pipe 82 and is located inside the rotating sleeve 9. A first diverting ring cylinder 17 is fixedly connected to the inner wall of the rotating sleeve 9. A first ring plate 18 is rotatably connected to the inner wall of the first diverting ring cylinder 17 through a sealed bearing. One end of the conveying pipe 16 located inside the rotating sleeve 9 is connected to the first ring plate 18. A square tube 19 is movably inserted into the front end of the rotating sleeve 9. A support ring 20 is fixedly connected to the inner wall of the rotating sleeve 9. The same spring connects the support ring 20 and the square tube 19. The first diversion ring cylinder 17 is fixedly connected to the side wall of the first bend pipe 21. The end of the first bend pipe 21 away from the first diversion ring cylinder 17 is connected to the flushing pipe 22 through the telescopic pipe. The front end of the flushing pipe 22 is connected to the flushing head mechanism 23 for conveying flushing liquid into the flushing head mechanism 23. The flushing head mechanism 23 includes a hollow cylinder 231 fixedly connected to the front end of the square tube 19. The front side wall of the hollow cylinder 231 is provided with multiple water spray holes 232 and multiple cleaning cones 24 are fixedly connected. The hollow cylinder 231 is provided with a water distribution box 25. The water distribution box 25 and the hollow cylinder 231 are fixedly connected with the same sealing ring 26. The front and rear sides of the water distribution box 25 are respectively connected to the first water distribution pipe 27 and the second water distribution pipe 28. The first water distribution pipe 27 and the second water distribution pipe 28 are both provided with control valves 29. The water distribution box 25 is provided with a pressure sensor 30. A recycling assembly 31 is disposed on the right side wall of the movable frame 1. The recycling assembly 31 includes a recycling box 311 fixedly connected to the right side wall of the movable frame 1. A sludge pump 312 is connected to the side wall of the recycling box 311. The discharge end of the sludge pump 312 is connected to the recycling box 311. A recycling pipe 32 is connected to the inlet end of the sludge pump 312. The end of the recycling pipe 32 away from the sludge pump 312 passes through the movable plate 81 and the fixed pipe 82 and is located inside the rotating sleeve 9. A second diversion ring cylinder 33 is fixedly connected to the inner wall of the rotating sleeve 9. The second diversion ring cylinder 33 is located behind the first diversion ring cylinder 17. The inner wall is rotatably connected to a second ring plate 34 via a sealed bearing. The front end of the recovery pipe 32 is fixedly connected to the second ring plate 34. The side wall of the second diversion ring cylinder 33 is fixedly connected to a second bend pipe 35. The end of the second bend pipe 35 away from the second diversion ring cylinder 33 passes through the first diversion ring cylinder 17 and is connected to a suction pipe 36 via a telescopic pipe. The inner wall of the square pipe 19 is fixedly connected to a converging pipe 37. The front end of the suction pipe 36 is connected to the converging pipe 37. The side wall of the converging pipe 37 is connected to multiple short pipes 38. The end of the short pipe 38 away from the converging pipe 37 extends out of the square pipe 19 for recovering the sludge flushed down from the blind pipe. An auxiliary component 39 is disposed on the surface of the flushing head mechanism 23. The auxiliary component 39 includes a plurality of first auxiliary cylinders 391 inserted into the outer wall of the hollow cylinder 231. The inner wall of the first auxiliary cylinder 391 is connected to a second auxiliary cylinder 392 by a spring. Both the first auxiliary cylinder 391 and the second auxiliary cylinder 392 are through structures. The inner wall of the second auxiliary cylinder 392 is connected to a pressing column 40 by a spring. One end of the pressing column 40 extending out of the second auxiliary cylinder 392 is fixedly connected to a pressing block 41. One end of the second auxiliary cylinder 392 located at the first auxiliary cylinder 391 is connected to a piston ring 42. One end of the pressing column 40 located at the second auxiliary cylinder 392 is fixedly connected to a piston plate 43, which can finely adjust the placement angle of the drill bit mechanism 8.

[0021] The operating principle of this invention is explained as follows: The operator moves the device to the blind pipe that needs to be enlarged, and then controls the two positioning electric push rods 44 to move the nail plate 45 downward to the set position through the external remote control switch to fix the entire device. Next, the operator manually aligns the flushing head mechanism 23 and the blind pipe, and controls the main electric push rod 7 to work through the external remote control switch, so that the main electric push rod 7 drives the hollow cylinder 231 to insert into the blind pipe at a certain position (at this position, the operator needs to manually clean the impurities on the inner wall of the blind pipe). Subsequently, the operator sends an electrical signal to the controller 2 through the remote control switch. After receiving the electrical signal, the controller 2 first controls the delivery pump 152 to work and controls the control valve 29 located in the second water distribution pipe 28 to open. The delivery pump 152 will deliver the flushing liquid in the flushing tank 151 through the delivery pipe 16 to the space between the first diversion ring cylinder 17 and the first ring plate 18, and then through the first bend pipe 21, the telescopic pipe and the flushing pipe 22 to the water distribution box 25, and then through the second water distribution pipe 28 to the first auxiliary Inside the auxiliary cylinder 391, the piston plate 43 and piston ring 42, under hydraulic pressure, push the second auxiliary cylinder 392 and the extrusion column 40 out. During the extension of the second auxiliary cylinder 392, the extrusion column 40 near the blind tube will cause the extrusion block 41 to first contact the inner wall of the blind tube. Under the action of the reaction force, the hollow cylinder 231 will move towards the center of the blind tube. When the hollow cylinder 231 reaches the center of the blind tube, the rotating sleeve 9, square tube 19, and fixed tube 82 will be coaxial with the blind tube (operation). After the operator places the equipment, he will control the hydraulic cylinder 401 to work through the remote control switch, so that the hydraulic cylinder 401 drives the main electric push rod 7 and the hinge of the adjustment frame 402 and the center of the blind pipe to be on the same horizontal plane. When the hollow cylinder 231 is located at the center of the blind pipe, the multiple extrusion blocks 41 will stop moving, which will cause the water pressure inside the water distribution box 25 to increase. After the controller 2 detects that the water pressure inside the water distribution box 25 reaches the set threshold (80kPa) through the pressure sensor 30, the controller 2 will control the delivery pump 152 to stop working. Subsequently, controller 2 controls the vertical electric push rod 47 and the horizontal electric push rod 51 to work. The vertical electric push rod 47 will drive the friction ring 48 to move downward and contact the limiting ring 49. Through the friction between the friction ring 48 and the limiting ring 49, the position between the adjusting frame 402 and the hydraulic cylinder 401 is relatively fixed to prevent the adjusting frame 402 from rotating. Similarly, the horizontal electric push rod 51 will drive the rough plate 52 to contact the rough seat 53 to fix the position of the adjusting rod 5 and the main electric push rod 7 to prevent the main electric push rod 7 from rotating, thereby fixing the angle of the drill bit mechanism 8. Next, controller 2 controls the control valve 29 inside the first water distribution pipe 27 to open, allowing the flushing fluid in the auxiliary component 39 to be sprayed out through the second water distribution pipe 28, the first water distribution pipe 27, and the spray nozzle 232. Two seconds after the control valve 29 inside the first water distribution pipe 27 opens, controller 2 controls the control valve 29 inside the second water distribution pipe 28 to close, and controls the delivery pump 152, the cleaning motor 11, and the sludge pump 312 to work simultaneously, and controls the main electric push rod 7 to work slowly. Referring to the above principle, the delivery pump 152 will spray the flushing fluid through the spray nozzle 232 onto the sludge in the blind pipe to wet the sludge, and the cleaning motor 11 will be driven by a gear ring transmission mechanism (the gear ring transmission mechanism includes a drive tooth fixed to the output end of the cleaning motor 11, and a tooth sleeved on the rotating sleeve 9). When the cleaning motor 11 drives the drive teeth to rotate, the drive teeth and the gear ring mesh with each other, which can drive the rotating sleeve 9 to rotate. This causes the rotating sleeve 9, square tube 19, hollow cylinder 231 and cleaning cone 24 to rotate together. The cleaning cone 24 is used to stir and dilute the wetted sludge. When the diluted mud comes into contact with the short pipe 38, it will be transported through the short pipe 38, the converging pipe 37, the suction pipe 36, the telescopic pipe, and the second bend pipe 35 to the space between the second diversion ring cylinder 33 and the second ring plate 34. Then the sludge pump 312 transports the mud to the recovery box 311 through the recovery pipe 32 for storage, which avoids the secondary deposition of sludge in the blind pipe or the scattering and accumulation in the tunnel construction area. This can keep the working environment clean and reduce the amount of subsequent manual cleaning work. Once the operator sees the rotating sleeve 9 moving the electric drill bit 14 into the blind pipe, the operator controls the electric drill bit 14 to work via an external remote control switch, and controls the small electric push rod 13 to bring the electric drill bit 14 into contact with the inner wall of the blind pipe. As the rotating sleeve 9 slowly rotates, the electric drill bit 14 will enlarge the hole in the blind pipe. The operator can gradually increase the stroke of the small electric push rod 13 to reciprocate the enlargement, using a step-by-step approach to gradually increase the hole diameter, rather than enlarging to the set size all at once. This effectively reduces the single cutting resistance and the load on the electric drill bit 14, preventing the electric drill bit 14 from shaking, deviating, or cracking and breaking the inner wall of the blind pipe due to excessive instantaneous force. It also reduces drill jamming, drill blockage, and equipment overload failures, making the enlargement process more stable and controllable, ensuring the regularity of the hole diameter and the straightness of the channel, reducing wear on the electric drill bit 14, extending its service life, and improving the overall construction quality and operational safety.

[0022] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tunnel blind pipe reaming machine, comprising a movable frame (1), wherein a controller (2) is fixedly connected to the upper side wall of the movable frame (1), and support plates (3) are fixedly connected to the left and right outer walls of the movable frame (1), and a plurality of rollers are connected to the lower side wall of the support plates (3), characterized in that, Also includes: Adjustment component (4) is set on the side wall of the movable frame (1) to facilitate manual rough adjustment of the placement angle of the drill bit mechanism (8); A delivery assembly (15) is disposed on the left side wall of the movable frame (1) for delivering flushing fluid into the flushing head mechanism (23); A recovery assembly (31) is provided on the right side wall of the mobile frame (1) for recovering the sludge flushed down from the blind pipe; An auxiliary component (39) is disposed on the surface of the flushing head mechanism (23) and is capable of finely adjusting the placement angle of the drill bit mechanism (8).

2. The tunnel blind pipe reaming machine according to claim 1, characterized in that, The adjustment assembly (4) includes a hydraulic cylinder (401) fixedly connected to the upper side wall of the movable frame (1). The moving end of the hydraulic cylinder (401) passes through the movable frame (1) and is rotatably connected to an adjustment frame (402). Adjustment rods (5) are rotatably connected to both the left and right sides of the adjustment frame (402). The two adjustment rods (5) are fixedly connected to the same mounting sleeve (6) at opposite ends. A main electric push rod (7) is fixedly connected inside the mounting sleeve (6). The rod wall of the moving end of the hydraulic cylinder (401) is opened by a release mechanism. The mounting frame (46) is connected to a vertical electric push rod (47), the moving end of the vertical electric push rod (47) is connected to a friction ring (48), the upper side wall of the adjusting frame (402) is connected to a limit ring (49), the left and right outer walls of the adjusting frame (402) are connected to a horizontal electric push rod (51) through a bending plate (50), the moving end of the horizontal electric push rod (51) is connected to a rough plate (52), and the end of the adjusting rod (5) extending out of the adjusting frame (402) is fixedly connected to a rough seat (53).

3. A tunnel blind pipe reaming machine according to claim 1, characterized in that, The drill bit mechanism (8) includes a movable plate (81) fixedly connected to the movable end of the main electric push rod (7). A fixed tube (82) is fixedly connected to the side wall of the movable plate (81) away from the main electric push rod (7). A rotating sleeve (9) is rotatably sleeved at the front end of the fixed tube (82) through a bearing. A connecting frame (10) is fixedly connected to the front side wall of the movable plate (81). A cleaning motor (11) is fixedly connected to the side wall of the connecting frame (10). The output end of the cleaning motor (11) is connected to the rotating sleeve (9) through a gear ring transmission mechanism. A mounting frame (12) is fixedly connected to the outer wall of the rotating sleeve (9). A small electric push rod (13) is fixedly connected to the lower side wall of the mounting frame (12). An electric drill bit (14) is connected to the movable end of the small electric push rod (13).

4. The tunnel blind pipe reaming machine according to claim 1, characterized in that, The conveying assembly (15) includes a flushing tank (151) fixedly connected to the left side wall of the movable frame (1). A conveying pump (152) is connected to the side wall of the flushing tank (151). The inlet of the conveying pump (152) is connected to the flushing tank (151). The outlet of the conveying pump (152) is connected to a conveying pipe (16). One end of the conveying pipe (16) away from the outlet of the conveying pump (152) passes through the movable plate (81) and the fixed pipe (82) and is located inside the rotating sleeve (9). A first diversion ring cylinder (17) is fixedly connected to the inner wall of the rotating sleeve (9). The inner wall of the first diversion ring cylinder (17) is rotated by a sealed bearing. The first ring plate (18) is movably connected. One end of the conveying pipe (16) located inside the rotating sleeve (9) is connected to the first ring plate (18). A square tube (19) is movably inserted into the front end of the rotating sleeve (9). A support ring (20) is fixedly connected to the inner wall of the rotating sleeve (9). The same spring is connected between the support ring (20) and the square tube (19). A first bend pipe (21) is fixedly connected to the side wall of the first diversion ring cylinder (17). The end of the first bend pipe (21) away from the first diversion ring cylinder (17) is connected to a flushing pipe (22) through a telescopic pipe. The front end of the flushing pipe (22) is connected to the flushing head mechanism (23).

5. A tunnel blind pipe reaming machine according to claim 4, characterized in that, The flushing head mechanism (23) includes a hollow cylinder (231) fixedly connected to the front end of the square tube (19). The front side wall of the hollow cylinder (231) is provided with multiple water spray holes (232) and multiple cleaning cones (24) fixedly connected. The hollow cylinder (231) is provided with a water distribution box (25). The water distribution box (25) and the hollow cylinder (231) are fixedly connected with the same sealing ring (26). The front and rear sides of the water distribution box (25) are respectively connected with a first water distribution pipe (27) and a second water distribution pipe (28). The first water distribution pipe (27) and the second water distribution pipe (28) are both provided with control valves (29). The water distribution box (25) is provided with a pressure sensor (30).

6. A tunnel blind pipe reaming machine according to claim 5, characterized in that, The recycling assembly (31) includes a recycling box (311) fixedly connected to the right side wall of the movable frame (1). A sludge pump (312) is connected to the side wall of the recycling box (311). The discharge end of the sludge pump (312) is connected to the recycling box (311). A recycling pipe (32) is connected to the inlet end of the sludge pump (312). One end of the recycling pipe (32) away from the sludge pump (312) passes through the movable plate (81) and the fixed pipe (82), and is located inside the rotating sleeve (9). A second diversion ring cylinder (33) is fixedly connected to the inner wall of the rotating sleeve (9). The second diversion ring cylinder (33) is located behind the first diversion ring cylinder (17). The second diversion ring cylinder (33) has... The inner wall is rotatably connected to a second ring plate (34) via a sealed bearing. The front end of the recovery pipe (32) is fixedly connected to the second ring plate (34). The side wall of the second diversion ring cylinder (33) is fixedly connected to a second bend pipe (35). The end of the second bend pipe (35) away from the second diversion ring cylinder (33) passes through the first diversion ring cylinder (17) and is connected to a suction pipe (36) via a telescopic pipe. The inner wall of the square tube (19) is fixedly connected to a converging pipe (37). The front end of the suction pipe (36) is connected to the converging pipe (37). The side wall of the converging pipe (37) is connected to multiple short pipes (38). The end of the short pipe (38) away from the converging pipe (37) extends out of the square tube (19).

7. A tunnel blind pipe reaming machine according to claim 5, characterized in that, The auxiliary component (39) includes a plurality of first auxiliary cylinders (391) inserted into the outer wall of the hollow cylinder (231). The inner wall of the first auxiliary cylinder (391) is connected to a second auxiliary cylinder (392) by a spring. The first auxiliary cylinder (391) and the second auxiliary cylinder (392) are both through structures. The inner wall of the second auxiliary cylinder (392) is connected to a pressing column (40) by a spring. The end of the pressing column (40) extending out of the second auxiliary cylinder (392) is fixedly connected to a pressing block (41). The end of the second auxiliary cylinder (392) located at the first auxiliary cylinder (391) is connected to a piston ring (42). The end of the pressing column (40) located at the second auxiliary cylinder (392) is fixedly connected to a piston plate (43).

8. A tunnel blind pipe reaming machine according to claim 1, characterized in that, The upper side wall of the support plate (3) is fixedly connected to a positioning electric push rod (44), the moving end of which passes through the support plate (3) and is fixedly connected to a nail plate (45).

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